An electron has a kinetic energy of 10 eV. What is the wavelength of this electron? A)5.9 × 10⁶ m B)1.2 × 10^-10 m C)1.9 × 10⁶ m D)3.9 × 10^-10 m E)3.8 × 10^-6 m

Question

Quizplus · Accepted Answer

The de Broglie wavelength of an electron is given by λ = h/p, where h is Planck's constant and p is the momentum. For an electron with kinetic energy (KE), p = √(2m_e * KE). Substituting the values, the wavelength is approximately 3.9 × 10^-10 m.

An Electron Has a Kinetic Energy of 10 EV